MINOR: [Dev] Add yum build directories to .gitignore

[pitrou]

Rationale for this change

yum-based packaging builds copy/create a lot of files that weren't marked as ignored, so they were not deleted by git clean -Xfd.

Are these changes tested?

Manually.

Are there any user-facing changes?

No.

[pitrou]

@kou Should other directories be added here?

[kou]

Hmm. This directory isn't created by default.
Did you use BUILD_DIR=build?

arrow/dev/tasks/linux-packages/package-task.rb

Line 140 in 4565b61

build_dir = ENV["BUILD_DIR"]

BTW, we have .gitignore for dev/tasks/linux-packages/: https://github.com/apache/arrow/blob/main/dev/tasks/linux-packages/.gitignore

[pitrou]

Hmm. This directory isn't created by default.
Did you use BUILD_DIR=build?

No, I didn't.

[kou]

Did you copy & paste this?

arrow/dev/tasks/linux-packages/github.linux.yml

Line 68 in 4565b61

rake --trace {{ task_namespace }}:build BUILD_DIR=build

[pitrou]

Ah, I probably did at the some point, since I was trying to reproduce those builds :)

[kou]

OK. Can we close this PR?

[pitrou]

Well, isn't it common to do just what I did? It would still sound useful to have a gitignore pattern for that, we already have other convenience patterns, see
https://github.com/apache/arrow/blob/main/.gitignore and https://github.com/apache/arrow/blob/main/cpp/ for examples (text editor files, etc.).

[kou]

I added it for ccache in CI.

If we want to add it, could you do it in dev/tasks/linux-packages/.gitignore that already has entries for dev/tasks/linux-packages/?

diff --git a/dev/tasks/linux-packages/.gitignore b/dev/tasks/linux-packages/.gitignore
index 0e49a90c1e..138662a4ef 100644
--- a/dev/tasks/linux-packages/.gitignore
+++ b/dev/tasks/linux-packages/.gitignore
@@ -16,13 +16,15 @@
 # under the License.
 
 /*/*.tar.gz
-/*/apt/repositories/
-/*/apt/tmp/
 /*/apt/build.sh
+/*/apt/build/
 /*/apt/env.sh
-/*/yum/repositories/
-/*/yum/tmp/
+/*/apt/repositories/
+/*/apt/tmp/
 /*/yum/build.sh
+/*/yum/build/
 /*/yum/env.sh
+/*/yum/repositories/
+/*/yum/tmp/
 /apt/repositories/